How is lying like this ethical under it?
Consequentialism has no problems with lying at all.
Many internet libertarians aren't very consequentialist, though. And really, just the basic application of rule-utilitarianism would expose many, many problems with that post. But really, though: while the "Non-Aggression Principle" appears just laughably unworkable to me... given that many libertarians do subscribe to it, is lying to voters not an act of aggression?
You know the drill - If it's worth saying, but not worth its own post (even in Discussion), then it goes here.